[MSDN Library September 1992] HIWORD (59.988038277512%)

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[MSDN Library June 1998] HIWORD (41.2259615384615%)

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[MSDN Library September 1992] HIWORD (35.0862068965517%)

Product Documentation > QuickC for Windows > Windows Programming Reference > Chapter 4 Functions Directory

[MSDN Library September 1992] HIWORD (34.9773755656109%)

Product Documentation > Windows 3.1 SDK > Programmer's Reference Volume 3: Messages, Structures, and Macros > Chapter 4 Macros